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MIC3775_06 Datasheet, PDF (1/13 Pages) Micrel Semiconductor – 750mA μCap Low-Voltage Low-Dropout Regulator | |||
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MIC3775
750mA µCap Low-Voltage
Low-Dropout Regulator
General Description
The MIC3775 is a 750mA low-dropout linear voltage
regulators that provides low-voltage, high-current output
from an extremely small package. Utilizing Micrelâs
proprietary Superβeta PNP® pass element, the MIC3775
offers extremely low-dropout (typically 280mV at 750mA)
and low ground current (typically 7.5mA at 750mA).
The MIC3775 is ideal for PC add-in cards that need to
convert from standard 5V to 3.3V or 3.0V, 3.3V to 2.5V or
2.5V to 1.8Vor 1.65V. A guaranteed maximum dropout
voltage of 500mV over all operating conditions allows the
MIC3775 to provide 2.5V from a supply as low as 3.0V and
1.8V or 1.5V from a supply as low as 2.25V.
The MIC3775 is fully protected with overcurrent limiting,
thermal shutdown, and reversed-leakage protection. Fixed
and adjustable output voltage options are available with an
operating temperature range of â40°C to +125°C.
Data sheets and support documentation can be found on
Micrelâs web site at www.micrel.com.
Features
⢠Fixed and adjustable output voltages to 1.24V
⢠280mV typical dropout at 750mA
â Ideal for 3.0V to 2.5V conversion
â Ideal for 2.5V to 1.8V or 1.65V conversion
⢠Stable with ceramic capacitor
⢠750mA minimum guaranteed output current
⢠1% initial accuracy
⢠Low ground current
⢠Current limiting and thermal shutdown
⢠Reversed-leakage protection
⢠Fast transient response
⢠Low-profile power MSOP-8 package
Applications
⢠Fiber optic modules
⢠LDO linear regulator for PC add-in cards
⢠PowerPC⢠power supplies
⢠High-efficiency linear power supplies
⢠SMPS post regulator
⢠Multimedia and PC processor supplies
⢠Battery chargers
⢠Low-voltage microcontrollers and digital logic
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Typical Application
1.25V/750mA Adjustable Regulator
PowerPC is a trademark of IBM Corp.
Super βeta PNP is a registered trademark of Micrel, Inc.
Micrel Inc. ⢠2180 Fortune Drive ⢠San Jose, CA 95131 ⢠USA ⢠tel +1 (408) 944-0800 ⢠fax + 1 (408) 474-1000 ⢠http://www.micrel.com
December 2006
1
M9999-121906
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